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All results from a given calculation for C5H10O (3-Pentanone)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-270.300926
Energy at 298.15K 
HF Energy-270.300926
Nuclear repulsion energy238.004939
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3135 3025 25.89      
2 A1 3070 2962 2.78      
3 A1 3044 2938 17.73      
4 A1 1739 1678 55.06      
5 A1 1563 1508 7.36      
6 A1 1515 1462 26.65      
7 A1 1471 1419 9.28      
8 A1 1375 1326 11.56      
9 A1 1130 1091 4.48      
10 A1 1019 983 1.56      
11 A1 776 749 1.71      
12 A1 420 405 0.36      
13 A1 201 194 0.36      
14 A2 3139 3028 0.00      
15 A2 3060 2953 0.00      
16 A2 1563 1508 0.00      
17 A2 1304 1258 0.00      
18 A2 1052 1015 0.00      
19 A2 739 713 0.00      
20 A2 192 185 0.00      
21 A2 35 34 0.00      
22 B1 3139 3029 40.96      
23 B1 3072 2964 12.61      
24 B1 1563 1508 15.99      
25 B1 1349 1302 0.72      
26 B1 1171 1130 0.56      
27 B1 851 821 15.20      
28 B1 486 469 0.90      
29 B1 156 150 0.16      
30 B1 64 61 0.15      
31 B2 3135 3025 13.98      
32 B2 3070 2962 33.50      
33 B2 3035 2929 10.99      
34 B2 1563 1508 10.77      
35 B2 1506 1453 2.68      
36 B2 1471 1420 14.59      
37 B2 1380 1331 23.56      
38 B2 1143 1103 78.59      
39 B2 1043 1007 5.61      
40 B2 953 920 20.15      
41 B2 630 608 1.42      
42 B2 324 312 17.43      

Unscaled Zero Point Vibrational Energy (zpe) 31321.8 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 30222.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/3-21G
ABC
0.29047 0.06538 0.05557

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.290
C2 0.000 0.000 0.055
C3 0.000 1.296 -0.755
C4 0.000 -1.296 -0.755
C5 0.000 2.538 0.149
C6 0.000 -2.538 0.149
H7 0.880 1.288 -1.415
H8 -0.880 1.288 -1.415
H9 -0.880 -1.288 -1.415
H10 0.880 -1.288 -1.415
H11 0.000 3.455 -0.449
H12 -0.882 2.536 0.796
H13 0.882 2.536 0.796
H14 0.000 -3.455 -0.449
H15 0.882 -2.536 0.796
H16 -0.882 -2.536 0.796

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.23472.42132.42132.78302.78303.12223.12223.12223.12223.86772.73002.73003.86772.73002.7300
C21.23471.52831.52832.53992.53992.14332.14332.14332.14333.49122.78512.78513.49122.78512.7851
C32.42131.52832.59101.53683.93891.09931.09932.80772.80772.18062.17302.17304.75994.22654.2265
C42.42131.52832.59103.93891.53682.80772.80771.09931.09934.75994.22654.22652.18062.17302.1730
C52.78302.53991.53683.93895.07642.18652.18654.22594.22591.09421.09371.09376.02255.19075.1907
C62.78302.53993.93891.53685.07644.22594.22592.18652.18656.02255.19075.19071.09421.09371.0937
H73.12222.14331.09932.80772.18654.22591.75963.11972.57612.52973.08962.53814.91924.41684.7551
H83.12222.14331.09932.80772.18654.22591.75962.57613.11972.52972.53813.08964.91924.75514.4168
H93.12222.14332.80771.09934.22592.18653.11972.57611.75964.91924.41684.75512.52973.08962.5381
H103.12222.14332.80771.09934.22592.18652.57613.11971.75964.91924.75514.41682.52972.53813.0896
H113.86773.49122.18064.75991.09426.02252.52972.52974.91924.91921.78081.78086.90916.18176.1817
H122.73002.78512.17304.22651.09375.19073.08962.53814.41684.75511.78081.76386.18175.36985.0718
H132.73002.78512.17304.22651.09375.19072.53813.08964.75514.41681.78081.76386.18175.07185.3698
H143.86773.49124.75992.18066.02251.09424.91924.91922.52972.52976.90916.18176.18171.78081.7808
H152.73002.78514.22652.17305.19071.09374.41684.75513.08962.53816.18175.36985.07181.78081.7638
H162.73002.78514.22652.17305.19071.09374.75514.41682.53813.08966.18175.07185.36981.78081.7638

picture of 3-Pentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 122.041 O1 C2 C4 122.041
C2 C3 C5 111.920 C2 C3 H7 108.200
C2 C3 H8 108.200 C2 C4 C6 111.920
C2 C4 H9 108.200 C2 C4 H10 108.200
C3 C2 C4 115.918 C3 C5 H11 110.833
C3 C5 H12 110.259 C3 C5 H13 110.259
C4 C6 H14 110.833 C4 C6 H15 110.259
C4 C6 H16 110.259 C5 C3 H7 110.991
C5 C3 H8 110.991 C6 C4 H9 110.991
C6 C4 H10 110.991 H7 C3 H8 106.318
H9 C4 H10 106.318 H11 C5 H12 108.965
H11 C5 H13 108.965 H12 C5 H13 107.479
H14 C6 H15 108.965 H14 C6 H16 108.965
H15 C6 H16 107.479
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.444      
2 C 0.454      
3 C -0.480      
4 C -0.480      
5 C -0.540      
6 C -0.540      
7 H 0.212      
8 H 0.212      
9 H 0.212      
10 H 0.212      
11 H 0.182      
12 H 0.204      
13 H 0.204      
14 H 0.182      
15 H 0.204      
16 H 0.204      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.447 2.447
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.022 0.000 0.000
y 0.000 -36.936 0.000
z 0.000 0.000 -40.785
Traceless
 xyz
x 1.838 0.000 0.000
y 0.000 1.968 0.000
z 0.000 0.000 -3.806
Polar
3z2-r2-7.613
x2-y2-0.087
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.192 0.000 0.000
y 0.000 8.729 0.000
z 0.000 0.000 7.721


<r2> (average value of r2) Å2
<r2> 215.161
(<r2>)1/2 14.668